[ARROW-2483] [Rust] use bit-packing for boolean vectors

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.12.0
• Component/s: Rust
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/18704
• Assignee: Chao Sun
• Reporter: Chao Sun
• Created: 20/Apr/18 16:26
• Updated: 11/Jan/23 07:21
• Resolved: 17/Oct/18 10:41

Description

Boolean vectors now use 1 byte for each value, which seems wasteful. We could use bit-packing to store the values, similar to the CPP implementation.

Issue Links

• links to: GitHub Pull Request #2746